CN108092361A - The battery protecting circuit of low standby power loss and car emergency startup power supply - Google Patents
The battery protecting circuit of low standby power loss and car emergency startup power supply Download PDFInfo
- Publication number
- CN108092361A CN108092361A CN201711435664.0A CN201711435664A CN108092361A CN 108092361 A CN108092361 A CN 108092361A CN 201711435664 A CN201711435664 A CN 201711435664A CN 108092361 A CN108092361 A CN 108092361A
- Authority
- CN
- China
- Prior art keywords
- resistance
- circuit
- mcu
- triode
- switch pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
Abstract
The invention discloses a kind of battery protecting circuit of low standby power loss and car emergency startup power supplies; including being used to be connected between battery and late-class circuit; for the discharge switch pipe of late-class circuit power supply, MCU, battery protection chip, active circuit and latching circuit are further included；Active circuit is connected with the driving pin of discharge switch pipe and the energization pins of MCU, by the way that pin is driven to drive the conducting of discharge switch pipe and provides operating voltage to MCU by energization pins, MCU is made to work on power；The input terminal of latching circuit is connected with MCU, the output terminal of latching circuit is connected with driving pin, MCU controls latching circuit to driving pin output driving electric signal, it is held on discharge switch pipe, or control latching circuit disconnects output to the driving electric signal for driving pin, ends discharge switch pipe, need to only be switched on or off discharge switch pipe with regard to late-class circuit can be made to work or thoroughly power off, there is no any power attenuation when late-class circuit powers off, so that device standby power consumption substantially reduces.
Description
Technical field
The present invention relates to circuit design technique more particularly to the battery protecting circuits and car emergency of a kind of low standby power loss
Startup power supply.
Background technology
Since car emergency startup power supply generates, with the continuous continuous maturation promoted with technology of application, many users
Wish that startup power supply can accomplish functional diversities, and it is quality-high and inexpensive on the basis of safe and reliable.This is just to product design
Harsh requirement is proposed, should ensure the function of product itself, reduce cost as far as possible again.In the market, startup power supply
The function often having has USB to charge, notebook charges etc., a switching tube will be generally concatenated before these function modules, especially
It is notebook charge function, is BOOST circuit structures in itself, if there is failure, it is inadequate to be only simply turned off boost control circuit
, it is necessary to there are one special switches thoroughly to break the power supply of load, to ensure the reliability of circuit.
Since startup power supply is the product with multi-string battery, so battery privacy protection circuit must be carried, it is used as
Afterbody over-charging of battery is crossed and put and the hardware protection of overcurrent etc., the protection circuit carry charge and discharge switch pipe in itself, and
The selection of switching tube is varied from the difference of bearing power.Other function modules are all connected on the rear class of protection circuit, respectively
It is separated between a function module and protection board with switching tube, although such working method can effectively solve corresponding function and ask
Topic, but circuit is excessively complicated, follows the prescribed order, and does not meet the characteristic of Modern consumer electronics.And functionally have excessive repetition,
Also the cost of power-supply device product is increased, while each function module works or can generate higher power dissipation when standby, makes
Into the loss of the energy content of battery.
The content of the invention
The present invention provides a kind of battery protecting circuit of low standby power loss and car emergency startup power supply, to solve to use
The problem of power-supply device product stand-by power consumption of existing battery protecting circuit is high.The present invention is to be achieved through the following technical solutions
's：
A kind of battery protecting circuit of low standby power loss is described including being used to be connected between battery and late-class circuit
The discharge switch pipe of late-class circuit power supply, further includes MCU, battery protection chip, active circuit and latching circuit；
The battery protection chip is connected with the driving pin of the discharge switch pipe；
The active circuit is connected with the driving pin of the discharge switch pipe and the energization pins of the MCU, for leading to
The driving pin is crossed to drive the discharge switch pipe conducting and provide work electricity to the MCU by the energization pins
Pressure, makes the MCU work on power；
The input terminal of the latching circuit is connected with the MCU, the output terminal of the latching circuit and the driving pin
Connection, the MCU make the discharge switch pipe for the latching circuit to be controlled to drive pin output driving electric signal to described
It is held on or controls the latching circuit to disconnect driving electric signal of the output to the driving pin, open the electric discharge
Close pipe cut-off.
Further, the active circuit includes Self-resetting button J1, passes through the Self-resetting button J1 and the driving
Pin is electrically connected, and when pressing the Self-resetting button J1, the Self-resetting button J1 makes described to the driving pin powered
Discharge switch pipe turns on.
Further, the active circuit further includes diode D1, diode D2, diode D3, diode D4, resistance
R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, triode Q1, triode Q2, capacitance C1 and voltage stabilizing chip U1；
The Self-resetting button J1 includes first end and second end, and the first end is connected with the anode of diode D2, and two
The cathode of pole pipe D2 is connected by resistance R1 with the driving pin, and anode of the first end also with diode D1 is connected, and two
The cathode of pole pipe D1 is connected with one end of resistance R3, and the other end of resistance R3 and one end of resistance R2 and the base stage of triode Q1 connect
It connects, the other end ground connection of resistance R2, the emitter ground connection of triode Q1, the collector of triode Q1 connects with one end of resistance R4
It connects, the other end of resistance R4 is connected with the base stage of one end of resistance R5 and triode Q2, emitter and the resistance R5 of triode Q2
Other end connection, the collector of triode Q2 is connected with the anode of diode D3, the cathode of diode D3 and diode D4's
Cathode is connected with one end of resistance R6, and the other end of resistance R6 connects the energization input of the voltage stabilizing chip U1, the voltage stabilizing
The power supply output terminal of chip U1 connects the energization pins of the MCU, and the power supply output terminal of the voltage stabilizing chip U1 is with capacitance C1's
One end connects, the other end ground connection of capacitance C1, the ground terminal ground connection of the MCU.
Further, the latching circuit includes optocoupler U2, and the driving is exported to the driving pin by optocoupler U2
Electric signal.
Further, the latching circuit further includes resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance
R12, triode Q3 and optocoupler U2；One end of resistance R8 is connected with the MCU, the other end of resistance R8 and one end of resistance R7 with
Triode Q3 base stage connection, resistance R7 the other end ground connection, triode Q3 emitter ground connection, the collector of triode Q3 with
One end connection of resistance R9, the other end of resistance R9 and one end of resistance R10 and the cathode of the light emitting diode in optocoupler U2 connect
It connects, the other end of resistance R10 and one end of resistance R11 are connected with the anode of the light emitting diode, the other end of resistance R11
It powers for the latching circuit, the emitter of the phototriode in optocoupler U2 is connected by resistance R12 with the driving pin,
The collector of the phototriode is used to access the driving electric signal.
A kind of car emergency startup power supply, including any one battery as described above, battery protecting circuit and rear class electricity
Road.
Compared with prior art, the battery protecting circuit of low standby power loss provided by the invention is using discharge switch pipe as institute
There is the master switch of late-class circuit, need to only be switched on or off discharge switch pipe can just make late-class circuit work normally or thoroughly break
Electricity, there is no any power attenuation when late-class circuit powers off, so that device standby power consumption substantially reduces.
Description of the drawings
Fig. 1 is the theory of constitution schematic diagram of the battery protecting circuit of low standby power loss provided by the invention；
Fig. 2 be low standby power loss provided by the invention battery protecting circuit in active circuit circuit theory schematic diagram；
Fig. 3 be low standby power loss provided by the invention battery protecting circuit in latching circuit circuit theory schematic diagram.
Specific embodiment
Understand to make the object, technical solutions and advantages of the present invention clearer, with reference to embodiment and attached drawing, to this
Invention is described in further detail.
With reference to shown in Fig. 1, Fig. 2, Fig. 3, the battery protecting circuit of low standby power loss provided by the invention, including being used to connect
Between battery 1 and late-class circuit 8, for late-class circuit 8 power discharge switch pipe 4, further include MCU3, battery protection chip 2,
Active circuit 6 and latching circuit 5.MCU is the English abbreviation of micro-control unit.
Battery protection chip 2 is connected with the driving pin of discharge switch pipe 4.
Active circuit 6 is connected with the driving pin of discharge switch pipe 4 and the energization pins of MCU3, for passing through driving pin
Driving discharge switch pipe 4 turns on and provides operating voltage to MCU3 by energization pins, and MCU3 is made to work on power.
The input terminal of latching circuit 5 is connected with MCU3, and the output terminal of latching circuit 5 is connected with driving pin, and MCU3 is used for
Latching circuit 5 is controlled to driving pin output driving electric signal discharge switch pipe 4 to be made to be held on or control latching circuit 5
Driving electric signal of the output to driving pin is disconnected, ends discharge switch pipe 4.When discharge switch pipe 4 turns on, electric discharge is opened
Pass pipe 4 is 8 normal power supply of late-class circuit, and late-class circuit 8 works normally, and when discharge switch pipe 4 ends, discharge switch pipe 4 closes
It closes, disconnects the power supply to late-class circuit 8, late-class circuit 8 completely closes.Discharge switch pipe 4, which only need to be switched on or off, can just make
Late-class circuit 8 is worked normally or thoroughly powered off, there is no any power attenuation when late-class circuit 8 powers off, so that equipment is treated
Machine power consumption substantially reduces.
Active circuit 6 includes Self-resetting button J1, by Self-resetting button J1 with pin is driven to be electrically connected, when pressing runback
During the button J1 of position, Self-resetting button J1 turns on discharge switch pipe 4 to driving pin powered.
Active circuit 6 further includes diode D1, diode D2, diode D3, diode D4, resistance R1, resistance R2, resistance
R3, resistance R4, resistance R5, resistance R6, triode Q1, triode Q2, capacitance C1 and voltage stabilizing chip U1.Self-resetting button J1 bags
First end and second end is included, first end is connected with the anode of diode D2, and the cathode of diode D2 is drawn by resistance R1 with driving
Foot connects, and anode of the first end also with diode D1 is connected, and the cathode of diode D1 is connected with one end of resistance R3, resistance R3's
One end of the other end and resistance R2 are connected with the base stage of triode Q1, the other end ground connection of resistance R2, the emitter of triode Q1
Ground connection, the collector of triode Q1 are connected with one end of resistance R4, the other end of resistance R4 and one end of resistance R5 and triode
The base stage connection of Q2, the emitter of triode Q2 are connected with the other end of resistance R5, collector and the diode D3 of triode Q2
Anode connection, the cathode of diode D3 and the cathode of diode D4 be connected with one end of resistance R6, the other end company of resistance R6
Meet the energization input of voltage stabilizing chip U1, the energization pins of the power supply output terminal connection MCU3 of voltage stabilizing chip U1, voltage stabilizing chip U1
Power supply output terminal be connected with one end of capacitance C1, the other end of capacitance C1 ground connection, the ground terminal ground connection of MCU3.In Fig. 1, from
After reset key J1 is pressed, the second terminal shortcircuit, first end by resistance R1 to the driving pin powered of discharge switch pipe 4, and then
Driving discharge switch pipe 4 turns on, and powers for late-class circuit 8.Meanwhile when Self-resetting button J1 is pressed, triode Q1 conductings make
Voltage stabilizing chip U1 work is obtained, the power supply output terminal output voltage of voltage stabilizing chip U1 gives MCU3 to power, and MCU3 enters working condition.
Because button J1 is runback bit pattern, the voltage of first end will not maintain always, after Self-resetting button J1 unclamps its first
Terminal voltage disappears, so the power supply of MCU3 needs that a period of time is maintained to power to meet MCU3 from life's work, MCU3 is started to
Hold time and determined by capacitance C1.MCU3 can also activate work by charging modes, and the anode of charger is directly connected on surely
The input terminal of chip U1 is pressed, with MCU3 altogether, when charger accesses, MCU3 is powered on automatically into working condition negative terminal.
Latching circuit 5 include optocoupler U2, by optocoupler U2 to driving pin output driving electric signal.Latching circuit 5 also wraps
Include resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, triode Q3 and optocoupler U2.One end of resistance R8
It is connected with MCU3, the other end of resistance R8 and one end of resistance R7 are connected with the base stage of triode Q3, another termination of resistance R7
Ground, the emitter ground connection of triode Q3, the collector of triode Q3 are connected with one end of resistance R9, the other end and electricity of resistance R9
One end of resistance R10 is connected with the cathode of the light emitting diode in optocoupler U2, the other end of resistance R10 and one end of resistance R11
It is connected with the anode of light emitting diode, the other end of resistance R11 is powered for latching circuit 5, the phototriode in optocoupler U2
Emitter is connected by resistance R12 with driving pin, and the collector of phototriode drives electric signal for accessing.MCU3 is powered on
Afterwards, triode Q3 is turned on, optocoupler U2 conductings, after optocoupler U2 conductings, phototriode conducting, from the collector of phototriode
The driving electric signal of entrance is sent from the emitter of phototriode, and passes through the driving that resistance R12 is transferred to discharge switch pipe 4
Pin, so as to lock the driving electric signal of discharge switch pipe 4, MCU3 power supply self-locking successes.MCU3 only need to close triode Q3 just
Discharge switch pipe 4 can be closed, realizes Self-unlocking so that all power-off of all late-class circuits 8, so as to reduce stand-by power consumption.It puts
Electric switch pipe 4 can be connected by charge switch pipe 7 with late-class circuit 8, is realized and is charged to battery 1.In the conceived case, optocoupler
U2 can be replaced with switching devices such as triode, metal-oxide-semiconductor or relays, realize the same or similar function.
Based on above-mentioned battery protecting circuit, the embodiment of the present invention additionally provides a kind of car emergency startup power supply, including such as
On any one battery 1, battery protecting circuit and late-class circuit 8.
When battery protecting circuit works, activation discharge switch pipe 4 is first passed through, and activates MCU3, is lockked and discharged by MCU3
The driving electric signal of switching tube 4, to maintain the normal work of 4 late-class circuit 8 of discharge switch pipe.When needs enter shutdown or standby
During state, MCU3 unlocks discharge switch pipe 4 by latching circuit 5, closes discharge switch pipe 4, and then closes all to rear class
The power supply of circuit 8.Such pattern can greatly simplify late-class circuit 8, reduce cost.Simultaneously as car emergency starts electricity
In standby or closing, the power supply of late-class circuit 8 of discharge switch pipe 4 is disconnected in source, so there is no power attenuations so as to significantly
The stand-by power consumption of car emergency startup power supply is reduced, also reduces the battery 1 of car emergency startup power supply because long-term power consumption is big
And impaired probability.
Above-described embodiment is only preferred embodiment, the protection domain being not intended to limit the invention, in the spirit of the present invention
With all any modification, equivalent and improvement made within principle etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of battery protecting circuit of low standby power loss, which is characterized in that including be used to being connected to battery and late-class circuit it
Between, for the discharge switch pipe of late-class circuit power supply, further include MCU, battery protection chip, active circuit and latching circuit；
The battery protection chip is connected with the driving pin of the discharge switch pipe；
The active circuit is connected with the driving pin of the discharge switch pipe and the energization pins of the MCU, for passing through
It states driving pin to drive the discharge switch pipe conducting and provide operating voltage to the MCU by the energization pins, makes institute
MCU is stated to work on power；
The input terminal of the latching circuit is connected with the MCU, and the output terminal of the latching circuit is connected with the driving pin,
The MCU keeps the discharge switch pipe for the latching circuit to be controlled to drive pin output driving electric signal to described
Conducting or the control latching circuit disconnect driving electric signal of the output to the driving pin, make the discharge switch pipe
Cut-off.
2. the battery protecting circuit of low standby power loss as described in claim 1, which is characterized in that the active circuit is included certainly
Reset key J1 is electrically connected by the Self-resetting button J1 with the driving pin, when pressing the Self-resetting button J1,
The Self-resetting button J1 turns on the discharge switch pipe to the driving pin powered.
3. the battery protecting circuit of low standby power loss as claimed in claim 2, which is characterized in that the active circuit further includes
Diode D1, diode D2, diode D3, diode D4, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance
R6, triode Q1, triode Q2, capacitance C1 and voltage stabilizing chip U1；
The Self-resetting button J1 includes first end and second end, and the first end is connected with the anode of diode D2, diode
The cathode of D2 is connected by resistance R1 with the driving pin, and anode of the first end also with diode D1 is connected, diode
The cathode of D1 is connected with one end of resistance R3, and the other end of resistance R3 and one end of resistance R2 are connected with the base stage of triode Q1,
The other end ground connection of resistance R2, the emitter ground connection of triode Q1, the collector of triode Q1 are connected with one end of resistance R4, electricity
The other end of resistance R4 is connected with one end of resistance R5 and the base stage of triode Q2, and the emitter of triode Q2 is another with resistance R5's
End connection, the collector of triode Q2 is connected with the anode of diode D3, the cathode of diode D3 and the cathode of diode D4 and
One end connection of resistance R6, the other end of resistance R6 connect the energization input of the voltage stabilizing chip U1, the voltage stabilizing chip U1
Power supply output terminal connect the energization pins of the MCU, the power supply output terminal of the voltage stabilizing chip U1 connects with one end of capacitance C1
It connects, the other end ground connection of capacitance C1, the ground terminal ground connection of the MCU.
4. the battery protecting circuit of low standby power loss as described in claim 1, which is characterized in that the latching circuit includes light
Coupling U2 exports the driving electric signal by optocoupler U2 to the driving pin.
5. the battery protecting circuit of low standby power loss as claimed in claim 4, which is characterized in that the latching circuit further includes
Resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, triode Q3 and optocoupler U2；One end of resistance R8 with
The MCU connections, the other end of resistance R8 and one end of resistance R7 are connected with the base stage of triode Q3, another termination of resistance R7
Ground, the emitter ground connection of triode Q3, the collector of triode Q3 are connected with one end of resistance R9, the other end and electricity of resistance R9
One end of resistance R10 is connected with the cathode of the light emitting diode in optocoupler U2, the other end of resistance R10 and one end of resistance R11 and
The anode connection of the light emitting diode, the other end of resistance R11 are powered for the latching circuit, photosensitive three pole in optocoupler U2
The emitter of pipe is connected by resistance R12 with the driving pin, and the collector of the phototriode is used to access the drive
Dynamic electric signal.
6. a kind of car emergency startup power supply, which is characterized in that including battery, the battery as described in any in claim 1 to 5
Protect circuit and late-class circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435664.0A CN108092361A (en) | 2017-12-26 | 2017-12-26 | The battery protecting circuit of low standby power loss and car emergency startup power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435664.0A CN108092361A (en) | 2017-12-26 | 2017-12-26 | The battery protecting circuit of low standby power loss and car emergency startup power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108092361A true CN108092361A (en) | 2018-05-29 |
Family
ID=62179521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711435664.0A Pending CN108092361A (en) | 2017-12-26 | 2017-12-26 | The battery protecting circuit of low standby power loss and car emergency startup power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108092361A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109417206A (en) * | 2018-09-03 | 2019-03-01 | 深圳迈瑞生物医疗电子股份有限公司 | A kind of electric power management circuit |
| CN109586248A (en) * | 2018-12-14 | 2019-04-05 | 上海沥马自动化设备有限公司 | A kind of solenoid valve driving module for realizing overcurrent protection |
| CN109698686A (en) * | 2018-12-18 | 2019-04-30 | 国网西藏电力有限公司 | A kind of easy high current optical coupled switch circuit |
| CN110597127A (en) * | 2019-09-20 | 2019-12-20 | 深圳市易马智行科技有限公司 | Electric vehicle control system with activation function |
| CN116488307A (en) * | 2023-06-20 | 2023-07-25 | 广东采日能源科技有限公司 | Low-power-consumption switching circuit of energy storage system and battery management system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102256087A (en) * | 2011-07-12 | 2011-11-23 | 青岛海信电器股份有限公司 | Low-power consumption standby circuit and television |
| CN102496991A (en) * | 2011-12-28 | 2012-06-13 | 南京双登科技发展研究院有限公司 | Backup lithium ion battery pack management method and management system thereof |
| US20120201062A1 (en) * | 2009-10-29 | 2012-08-09 | Seoby Electronics Co., Ltd. | Standby power cut-off device and control method thereof and power supply |
| CN202443282U (en) * | 2012-03-20 | 2012-09-19 | 彭海明 | Zero-power-consumption standby circuit |
| CN203423527U (en) * | 2013-08-09 | 2014-02-05 | 浙江超威创元实业有限公司 | Standby zero-power-consumption circuit for mobile power supply |
| CN203838507U (en) * | 2014-03-05 | 2014-09-17 | 宁波市安博应急品有限公司 | Energy-saving control circuit of embedded system |
| CN204333900U (en) * | 2014-12-26 | 2015-05-13 | 广东美的制冷设备有限公司 | Low-power consumption standby protective circuit and air conditioner |
| CN105116779A (en) * | 2015-09-15 | 2015-12-02 | 宁波卓奥电子科技有限公司 | Low standby power consumption type electrical terminal control board circuit |
-
2017
- 2017-12-26 CN CN201711435664.0A patent/CN108092361A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120201062A1 (en) * | 2009-10-29 | 2012-08-09 | Seoby Electronics Co., Ltd. | Standby power cut-off device and control method thereof and power supply |
| CN102256087A (en) * | 2011-07-12 | 2011-11-23 | 青岛海信电器股份有限公司 | Low-power consumption standby circuit and television |
| CN102496991A (en) * | 2011-12-28 | 2012-06-13 | 南京双登科技发展研究院有限公司 | Backup lithium ion battery pack management method and management system thereof |
| CN202443282U (en) * | 2012-03-20 | 2012-09-19 | 彭海明 | Zero-power-consumption standby circuit |
| CN203423527U (en) * | 2013-08-09 | 2014-02-05 | 浙江超威创元实业有限公司 | Standby zero-power-consumption circuit for mobile power supply |
| CN203838507U (en) * | 2014-03-05 | 2014-09-17 | 宁波市安博应急品有限公司 | Energy-saving control circuit of embedded system |
| CN204333900U (en) * | 2014-12-26 | 2015-05-13 | 广东美的制冷设备有限公司 | Low-power consumption standby protective circuit and air conditioner |
| CN105116779A (en) * | 2015-09-15 | 2015-12-02 | 宁波卓奥电子科技有限公司 | Low standby power consumption type electrical terminal control board circuit |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109417206A (en) * | 2018-09-03 | 2019-03-01 | 深圳迈瑞生物医疗电子股份有限公司 | A kind of electric power management circuit |
| CN109586248A (en) * | 2018-12-14 | 2019-04-05 | 上海沥马自动化设备有限公司 | A kind of solenoid valve driving module for realizing overcurrent protection |
| CN109698686A (en) * | 2018-12-18 | 2019-04-30 | 国网西藏电力有限公司 | A kind of easy high current optical coupled switch circuit |
| CN110597127A (en) * | 2019-09-20 | 2019-12-20 | 深圳市易马智行科技有限公司 | Electric vehicle control system with activation function |
| CN116488307A (en) * | 2023-06-20 | 2023-07-25 | 广东采日能源科技有限公司 | Low-power-consumption switching circuit of energy storage system and battery management system |
| CN116488307B (en) * | 2023-06-20 | 2023-09-22 | 广东采日能源科技有限公司 | Low-power-consumption switching circuit of energy storage system and battery management system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108092361A (en) | The battery protecting circuit of low standby power loss and car emergency startup power supply | |
| CN102694403B (en) | Charger and control method thereof | |
| CN109417206B (en) | Power management circuit | |
| CN109194317B (en) | Reset circuit and wearable equipment | |
| CN104850021B (en) | A kind of power on/off system | |
| CN212725408U (en) | Battery management circuit and power supply circuit | |
| CN102931720A (en) | Power circuit and power switching method | |
| CN102751764B (en) | Mobile power supply | |
| CN110890749A (en) | Power supply reverse connection prevention circuit and power supply circuit | |
| CN101441446A (en) | Power supply controller | |
| CN209516686U (en) | A kind of microprocessor work control circuit | |
| CN205721214U (en) | A kind of intelligent soy milk grinder control circuit | |
| CN104426127A (en) | Load starting circuit | |
| CN106684972A (en) | Driving device and driving method for increasing standby time of batteries | |
| CN216774311U (en) | Load driving chip | |
| CN113872292A (en) | Load driving chip | |
| CN105471247A (en) | Low power consumption standby control circuit, large power switching power supply, and electrical equipment | |
| CN209963755U (en) | Direct-in and direct-out power supply circuit and power supply | |
| CN210286373U (en) | Battery power module of elevator power failure emergency leveling device | |
| CN114006433A (en) | Battery device | |
| CN202906495U (en) | Mobile power supply | |
| CN207504636U (en) | A kind of projecting apparatus with power-off protection function | |
| CN207977784U (en) | A kind of power control circuit | |
| CN108448725B (en) | Power supply control circuit and control method | |
| CN201497947U (en) | Power management circuit with embedded chip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180529 |